SOLUTION: find an equation of the line graphed. write the equation using function notation. (2,2),(-5,5)

Algebra ->  Graphs -> SOLUTION: find an equation of the line graphed. write the equation using function notation. (2,2),(-5,5)      Log On


   

Question 982915: find an equation of the line graphed. write the equation using function notation. (2,2),(-5,5)
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
y=mx+b
and
b=y-mx

m=%28%285-2%29%2F%28-5-2%29%29=-3%2F7

Pick either given point...
b=2-%28-3%2F7%29%2A2=2%2B6%2F7=2%266%2F7

highlight%28y=-%283%2F7%29x%2B2%266%2F7%29

graph%28300%2C300%2C-10%2C10%2C-6%2C14%2C-%283%2F7%29x%2B2%266%2F7%29